Irwin® Unibit® 10239CB Step Drill Bit 7/8 in Dia Min Hole 1-1/8 in Dia Max Hole 2 Steps M35 HSS-Co 5 2 Hole Sizes 7/16 in Shank

Features

6X longer life Laser etched sizes inside flute for easy and permanent hole size identification Engineered with m35 cobalt steel for maximum life when drilling in tough steel Geometry of single flute cutting edge drills true round holes and provides maximum step control Laser marked size SpeedPoint® tip for fast starts

Product Description

Irwin® Unibit® Step Drill Bit Imperial #9 Letter/Wire 7/8 in Diameter Minimum Hole 1-1/8 in Diameter Maximum Hole 3-1/8 in Overall Length 2 Steps 2 Hole 1 Flutes Radial Concave Flute 7/16 in Shank Hex Shank SpeedPoint® Point M35 Cobalt HSS Cutting Edge M35 HSS-Co 5 Bright/Steam Oxide Applicable Materials: Steel and Stainless Steel

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